product description
Cold rolled sheet metal
Dimensions 280 * 148 * 120
Installation method
Weight 10Kg
Explosion-proof sign
Protection class IP54
Electrical index
Input voltage AC220V / 50Hz
Working current 1A
Power consumption
System capacity: 50 doors
Transmission distance 5km
Working frequency 300HZ-3400HZ
Ringtone level 700dB
Product Features
Suitable for use in unattended or unattended environments
Destructive
Has all the functions required by ordinary telephones
Good comic stability, strong anti-interference ability
Manual shortcut function.
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